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E. RlNEHlMER.

AIR TIGHT DOOR FOR PRESSURE CYLI-ND ERS AND TANKS.

' APPLICATION FILED NOV. 3.1914.

' 1,31 1,009. I PatentedJuly 22, 1919.

3 SHEETS-SHUT l.

E. RINEHIMER.

MR 'FI GHF D008 FOR PRESSURE CYLINDERS AND TAN KS.

APPLICATION FILED NOV. 3.1914.

latentedJulyQQ, 1919.

3 SHEETS-SHEET 2.

E. RlNEHlMER.

AIR TIGHT DOOR FOR PRESSURE CYLINDERS AND TANKS.

APPLICATION FILED NOV. 3. 1914.

a: IMEB, or WILKES-B WILKES-B 1' .:-1

manner a :1.

we, or

rrenr nooa r012. PRESSURE on 1 l A GORIPOTION OF PENNSYLV .1. AND ranks.

Specification Letters Patent. I Pgtgmtgqfi J fly 2%, 391% Application flled lt'ovember a, 1914. semi no. creme.

To all ivkom it may concern: I

Be it known that I, ERNEST RINEHI ER,

a citizen of theUnited States, and a resident of Wilkes-Barre,-county of Luzerne, State of Pennsylvania, have invented certain Improvements in Air-Tight Doors for Pressure Cylinders and Tanks, of which the followin is a specification.

One 0 ject of my invention. is to provide a detachable door or head for boilers, tanks, wood preparators, and other containers, which are subjected to internal pressures, so that the door or head can be applied quickly and made pressure tight without the use of detachable bolts.

A further object of the invention isto construct the door: or head so that it can 'be swungtothe ophn or the closed position on a pivoted arm.

A still further object of the invention is to construct'the door so that it can be turned on a pivot so as to engage or disengage an overlapping flange.

In the accompanying drawings-:

Figure 1, is a perspective view of a steaming cylinder llustratingmy invention, the

; inder'for lumber and illustratin vention,

door beingin the closed position Fig. 2, is a similar perspective view with the door in the open position;

Fig. 3, is a front view of a steaming cylmy inthe door being in position to be opened;

Fig. 4, is a sectional line a-a, Fig. 3;

Fig. 5, is a vertical sectional view on the line b.'b, Fig. 3; v

Fig. 6, is a sectional View taken on the plan view on the same line as Fig. 3, with the exception that the door is turned one-quarter ofa revolution so that the entire door will extend back of the overlapping flange;

Fig. 7, is a sectlonal plan view, showing the door pushed into the recess so that the extended flange 9 will clear the flange 4=- when the door is swung outward;

Fig. 8, is a sectional diagram plan view, similar to Fig. 5, showing the door pushed out of the cylinder; and

Fig. 9, is a similar view, showing the door 7 in the full open position.

1 InFigs. 1 and 2, I have shown the hin es on the right hand side of the cylin while in the rest of the fi res thehinges are on the left hand side. t will be undersection. This construction stood, however, that they can be on either side without departing from the main features of the invention.

Referring to the drawings, 1 is the cylindrical body, made of wrought metal plates in the present instance riveted together. One end of this cylinder is closed and at the other end is a ring 2, which is firmly secured to the cylinder by rivets 3. This rlng has an overhanging flange 4:, Figs. 3, 1 and 5, and this flange is spaced from the recess 5 for the door. The recess has a greater depth at the hinge side than at the opposite side. The flange 4' is cut away at 6, leaving a wide portion 7 at each side.

8 is the door having an extended flange 9, which is of a greater diameter than the diameter of the ring tion of the door is less in diameter, as clearly illustrated in Fig. 3. The door has a pivot pin 10 mounted in, a bearing 11 sothat. the door can be turned on this pivot.

When the door is in the position illustrated in Fig. 1, the extended flange 9 of the door underlaps the reduced flange of the ring 2 and the body portion of the door underlaps the extended portion 7 of the flange of the ring 2. In order to make a tight joint, the flange of the ring is recessed on the inner side to receive an annular strip of packing 12 so that, when pressure is applied, the door will be forced against this annular strip of packing, tight joint between the door and the ring.

The door, in the present instance, is made in three sections; a hub section 13 which carries the pivot 10; the outer rim section 14, which is shaped as above described; and a connecting'convexed portion 15, which is riveted to the hub section and to the rim of door may be modified'according to the amount of pressure to which it 1s subjected and its size. Smaller doors may be made in a single piece.

The bearing 11 for the pivot pin 10 is carried by an arm 16., This arm has extensions 17 into which extend the trunnions 18 of the bearing, so that the bearing can swing on the arm 16 and the head can turn in the bearing. On the end of the ivot pin is a plate 19, which overlaps the earing and holds it in the proper position with respect to the pin. The arm 16 is carried 'makingf'a steam l PENNSYLVANIA, assrenon T0 VULCAN men body of the ring so as to form an annular 6. The body porby a frame 20 pivotally mounted on the ring 2. This frame 20 has hinge extensions 21 and the frame has hinge lugs 22 through which extends the 'pins'23, so that the frame can freely swing to the open or to the closed position. At the outer end of the frame are pivot lugs 24 for the vertical pivot pin 25,

which passes through an opening 26 in the arm 16. Thus the arm 16 can freely swing on the frame 20 and the frame 29 can swing freely on the ring 2. As the bearing is pivotally mounted on the arm and the door can turn in the bearing, the door can be moved to any position desired so as to allow posite positions on the door. Each lug has a beveled under face forming a' cam surface and onthe projecting portion 7 of the flange of the ring 2, I pivot catches 28, each" havmg an arm 29 and a projection 30, which by turnin extend under the overhanging lugs 27 when the lugsare in line with the latches, as in Fig. 1, and as these latches are turned they will travel on the cam surface of the lu 5, drawing the door tightly against the pac ing. As the steam pressure increases, then the internal pressure will kee the door against the packing without tfl ese fasten- Iii order to turn the frame 16 on itsp'ivot, I provide the frame with sockets 31 for the reception of a bar 32. Any length of bar can be used, according to the size of the door. I also preferably provide eyes 33 on the door so that bars can be inserted in these eyes when it is desired to turn the door on its ivot.

. he operation is as follows :-When it is desired to close the door, the door is turned so that the narrow portions thereof are at the top and bottom. The door is then swung on the frame 20 until the narrow portions pass through the wide portions of the flange of the ring, after which the door is shifted 'so'that the entire door will pass back of the wide portions 7 of the flange 4. Then the door is moved and brought forward to the position illustrated in Fig. 3, after which it is turned on its pivot so that the extended portions 9 of the door project back of the narrow portions 6 of the flan e,

as in Fig. 6. The narrow portion of t e door is back of the extended portion 7 of the flange so that the entire edge of the door rests back of the flange 4 and in contact with the annular packing ring 12. The lugs 27 are in position opposite the catches 28., and these catches they engage the lugs and raw the door tightly against the so that the extended portion 9 of the door,

ass the extended portion 7 of the will flange of the ring. When the door is clear of the flange, it can be drawn out of the cylinder by turning the frame on its pivots and the arm 16 on its pivot, as illustrated in Fig. 8, so that it will clear the flange and can be moved to the extreme open position, as in Fig. 9.- I

While I have illustrated m invention as applied to a steaming cylin er, it will'be understood that it can be used for any container in which there is internal pressure. The door and the ring may be deslgned to meet the requirements of extreme pressure without departing from the essential features of the invention.

I claim v 1. The combination of a container having an annular flange at one end; the two diametrically opposite portions of the flange being wider than the remainder'thereof; a door hung on the outside of the container and adapted to pass through the opening in the flange and to bear against the inner side of said flange, said door having diametrically opposite portions of a greater width than the other portions of the door, the door being so pivoted that it can be turned to'allow the narrow portion thereof to aline with the reduced portion of the flange of the container when the door is passed through the opening in the container; and means for drawing the door tightly against the inner side of the flange.

"2. The combination of a container having a fixed ring provided with ,an internal flange, the said flange havin a portion cut away; a door for said container adapted to pass into the container and to fit against the inner surface of the flange of the ring, said door being wider at one portion thereof than at the other; a frame pivotally-m'ounted on the outside of the container; and an arm pivoted to the frame and carrying a horizontal bearin the door having a central pivot in adapted to the bearing in order that t e .door may pass into the opening formed by the ring so that, when turned, it will'bear against the inner surface of the ring and close the end-of the havin a ring at one end, sziid ring'being provi ed with an irregular, internal flange; a frame pivoted on the outside of the con- "tainer and to one side of the ring and arranged to' swing to and from the end of the container; an'arm pivoted to the outer end of the frame, the pivot for the frame being on the same plane as the pivot for the arm;

a door arranged to enter the container to-be turned so as to bear egalnst the inner surface of the flange ofthe ring; and a hori- ERNEST RINEHIMER.

Witnesses: r

- A. W. KUsoHKE,

C. FINGER. 

